[1] Linkoping Univ, Dept Med & Hlth Sci, Div Nursing Sci, Linkoping, Sweden
[2] Linkoping Univ, Dept Med & Hlth Sci, Dept Cardiothorac Surg, Cty Council Ostergotland, Linkoping, Sweden
[3] UC Irvine Program Nursing Sci, Irvine, CA USA
[4] Linkoping Univ, Dept Med & Hlth Sci, Ctr Med Technol Assessment, Linkoping, Sweden
[5] Linkoping Univ, Dept Med & Hlth Sci, Dept Cardiol, Cty Council Ostergotland, Linkoping, Sweden